Results 101 to 110 of about 48,878 (307)

Diagnosis Method for Sparse Optimization Based on Multi-step Grid Search of Bearing Coupling Faults

Jixie chuandong, 2022
Under the unbalance-bearing coupling fault of the rotor system, the unbalance fault features and bearing faults modulate each other, and the weak fault features are easily submerged by the strong fault features and strong noise components.
Gong Xiaoyun, Li Chao, Zhao Zhiwei, Ning Xiaobo, Zhang Yuxiang, Han Ming   +5 more
doaj  

An Efficient Method to Learn Overcomplete Multi-Scale Dictionaries of ECG Signals

Applied Sciences, 2018
The electrocardiogram (ECG) was the first biomedical signal for which digital signal processing techniques were extensively applied. By its own nature, the ECG is typically a sparse signal, composed of regular activations (QRS complexes and other ...
David Luengo, David Meltzer, Tom Trigano
doaj   +1 more source

Sparse Representation by Frames with Signal Analysis

Journal of Signal and Information Processing, 2016
The use of frames is analyzed in Compressed Sensing (CS) through proofs and experiments. First, a new generalized Dictionary-Restricted Isometry Property (D-RIP) sparsity bound constant for CS is established. Second, experiments with a tight frame to analyze sparsity and reconstruction quality using several signal and image types are shown.
openaire   +2 more sources

Electrochemical Evaluation of Compressed Selective Laser Melted AlSi7Mg and AlSi10Mg Alloys in Chloride Environment

Advanced Engineering Materials, EarlyView.
The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin, Samson Dare Oguntuyi, Peter Apata Olubambi   +2 more
wiley   +1 more source

Sparse representation-based DOA estimation of coherent wideband LFM signals in FRFT domain

EURASIP Journal on Wireless Communications and Networking, 2017
In this paper, the method of direction-of-arrival (DOA) estimation for wideband signals based on sparse representation of FRFT domain is proposed by using the excellent convergence of FRFT to LFM signals.
Bo Li, Xiuhong Wang
doaj   +1 more source

Parametric dictionary design for sparse coding

, 2009
—This paper introduces a new dictionary design method for sparse coding of a class of signals. It has been shown that one can sparsely approximate some natural signals using an overcomplete set of parametric functions, e.g. [1], [2].
Yaghoobi, M., Davies, M.E.; id_orcid, Daudet, L., Mehrdad Yaghoobi, Mike E. Davies, Laurent Daudet   +5 more
core  

Activelets: Wavelets for sparse representation of hemodynamic responses [PDF]

, 2011
We propose a new framework to extract the activity-related component in the BOLD functional Magnetic Resonance Imaging (fMRI) signal. As opposed to traditional fMRI signal analysis tech-niques, we do not impose any prior knowledge of the event timing ...
Michael Unser, Ildar Khalidov, Khalidov, Ildar, Dimitri Van De Ville, I. Introduction, Unser, Michael, Lazeyras, Francois, Fadili, Jalal, Van De Ville, Dimitri, Jalal Fadili, Dimitri Van, De Ville, François Lazeyras   +12 more
core   +1 more source

Additive Gaussian Process Regression for Predictive Design of High‐Performance, Printable Silicones

Advanced Engineering Materials, EarlyView.
A chemistry‐aware design framework for tuning printable polydimethylsiloxane (PDMS) for vat photopolymerization (VPP) is developed using additive Gaussian process (GP) modeling. Polymer network mechanics informs variable groupings, feasible formulation constraints, and interaction variables.
Roxana Carbonell, Martha Leach, Hongtao Song, Carolyn Seepersad   +3 more
wiley   +1 more source

Audio Inpainting

, 2012
(c) 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or ...
Emiya, Valentin, Maria G. Jafari, Emiya, V, Gribonval, R, Plumbley, MD, Amir Adler, Michael Elad, Mark D. Plumbley, Adler, Amir, Elad, M, Gribonval, Rémi, Plumbley, Mark D., Rémi Gribonval, Jafari, MG, Jafari, Maria, G., Elad, Michael, Adler, A, Valentin Emiya   +17 more
core   +1 more source

Field Report from Collaborative Research Center 1625: Heterogeneous Research Data Management Using Ontology Representations

Advanced Engineering Materials, EarlyView.
A unified research data management framework for heterogeneous materials data is presented. The system integrates multimodal datasets using ontologies and knowledge graphs, enabling interoperability and FAIR (findable, accessible, interoperable, reusable) data principles. By linking data across scales and workflows, it supports reproducible, Artifitial
Doaa Mohamed, Samuel García Vázquez, Behnam Mardani, Victor Dudarev, Alfred Ludwig, Maribel Acosta, Markus Stricker   +6 more
wiley   +1 more source